manganiten.
/ˈmaŋɡənʌɪt/, U.S. /ˈmæŋɡəˌnaɪt/ 1. Mineralogy. Basic manganese oxide, MnO(OH), a monoclinic mineral which occurs as dark grey or black prismatic crystals and fibrous masses and is an important ore of manganese.
ΘΚΠ
the world > the earth > minerals > types of mineral > oxides and hydroxides > [noun] > other oxides > other oxides of manganese
magnus1640
brownstone1780
manganite1827
braunite1839
manganoso-manganic oxide1845
bog manganese1875
manganese oxide1882
manganosite1884
manganostibite1887
1827 W. Haidinger in Trans. Royal Soc. Edinb. (1831) 11 122 Prismatoidal manganese-ore. Manganite.
1827 W. Haidinger in Trans. Royal Soc. Edinb. (1831) 11 125 The name of Manganite, proposed for this species, is formed in allusion to the metal which it contains.
1836 T. Thomson Outl. Mineral. I. 502 Manganite. Hydrous sesquioxide of manganese.
1858 H. B. Jones & A. W. Hoffman Fownes's Man. Elem. Chem. (ed. 7) 307 Sesquioxide..occurs in nature as braunite, and in the state of hydrate as manganite.
1914 Brit. Mus.: Return 221 in Parl. Papers (H.C. 186) LXXI. 193 The preparation of the slip-catalogues of the mineral specimens in the collection..has been continued... Slips have been prepared for the specimens of ilmenite, pseudobrookite, goethite, diaspore, manganite, gibbsite.
1965 G. J. Williams Econ. Geol. N.Z. xiii. 190/2 Coombs..mentioned the existence of ramsdellite..in ore which consists of pyrolusite with minor manganite.
1992 W. A. Deer et al. Introd. Rock-forming Minerals (ed. 2) 636 The natural alteration of rhodochrosite involves the production of..complex manganese oxides: it may eventually alter to manganite.
2. Chemistry. An oxide of manganese and another metal.
ΘΚΠ
the world > the earth > minerals > types of mineral > oxides and hydroxides > [noun] > other oxides > oxides of two elements
honey stone1792
bismuth-ochre1796
mellilite1796
melilithus1800
mellite1801
melilite1814
manganesite1823
heterocline1844
romeine1844
crednerite1849
roméite1849
whewellite1852
manganite1865
magnesioferrite1868
oxammite1870
molybdomenite1885
lautarite1892
tripuhyite1897
coronadite1904
hollandite1906
melanovanadite1921
quenselite1926
salesite1939
yttrotungstite1950
ordoñezite1953
1865 H. Watts Dict. Chem. III. 818 Salts which may be called manganites.
1877 C. T. Kingzett Hist. Alkali Trade 209 This latter body..forms what Mr. Weldon has termed manganite of magnesium (MgMnO3).
1910 Encycl. Brit. I. 677/1 This would take place much too slowly if there was not an excess of lime present ready to combine with the manganese dioxide to form a calcium manganite.
1950 N. V. Sidgwick Chem. Elements II. 1273 The manganites can be made either by the action of aqueous alkali on MnO2, or by fusing the oxides together.
1991 Mod. Power Syst. Sept. 19/1 The tubular SOFC..features a porous air electrode made of strontium-doped lanthanum manganite.
Derivatives
mangaˈnitic adj. rare containing the mineral manganite.
ΚΠ
1886 Pall Mall Gaz. 6 Mar. 5/2 A very considerable formation of manganitic ore.
This entry has been updated (OED Third Edition, September 2000; most recently modified version published online March 2022).
<
n.1827